603-8539 Track Sprocket
Cat® 21-Tooth Non-Segmented Track Sprocket for General Duty Systems, 16 Bolts
Description
The sprocket (for example, 603-8539) is used to transfer engine power to the link group and engage the link group to produce movement.
Features
- 21-tooth non-segmented track sprocket for General Duty systems.
- For use with M20 fasteners.
- Formed from through-hardened steel.
- Both the segments and the sprocket precisely
mate with the bushings.
- General Duty tracks provide an economical choice for machines nearing retirement or with low utilization. Their lower initial price lets them run until failure. All Cat undercarriage systems are backed by the Undercarriage Guarantee. They are manufactured by Caterpillar and hardened and quality tested to ensure they meet job site productivity and performance needs.
Applications
Refer to your Operation and Maintenance Manual or contact MECHSC for more information.
Specifications
| Undercarriage System | GD |
|---|---|
| Bolt Size | M20 mm |
| Number of Teeth | 21 |
| Number of Sprocket Teeth | 21 |
| Number of Sprocket Bolts | 16 |
| Pitch Diameter | 644.6 |
| Bolt Circle Diameter | 496 mm (19.528 in) |
| Bolt Thread Size | M20 |
| Noise Reduction Lugs | No |
| Sprocket Mounting Type | Offset |
| Bushing Radius | 29.4 mm (1.157 in) |
| Packing Offset Diameter | 641.6 |
| Backlash | 10 mm (0.394 in) |
| Groove Angle | 62 degrees |
| Tooth Width | 65 mm (2.559 in) |
| Material Type | Plain Steel |
| Tip Diameter | 655 mm (25.787 in) |
| Pitch | 190 mm (7.48 in) |
| Inside Diameter | 456.12 mm (17.957 in) |
| Number of Bolts | 16 |
| Pressure Reducing | No |
Compatible Equipment
- Excavators: 313, 323 GX, 320 GX, 320 GC, 320D3, 323GC, 326 GC, 323 GC, 320, 323, 333 GC





